Sylvester p



UNITED STATES I PATENT OFFICE.

SYLVESTER P. FROST, OF QUINCY, ILLINOIS, ASSIGNOR OF ONE-HALF TOSYLVESTER P. BARTLETT, OF SAME PLACE.

ANTIRUST PREPARATION.

SPECIFICATION forming part of Letters Patent No. 621,057, dated March14, 1899. Application filed December 10,1898. Serial No. 698,886. (Nospecimens l in chemical compounds for the prevention of rust on metalsand the removal of rust therefrom.

The object of the invention is'to provide an inexpensive compound ofthis character which will be effective in its action.

To this end the invention consists in the combination of the ingredientshereinafter specified, and particularly pointed out in the claim.

In carrying out my invention I take fresh unsalted lard andchemically-pure Vaseline of equal parts, which I melt and mix in aWater-bath. After the two ingredients have been thoroughly combined Ithen add equal quantities of pulverized gum-camphor, plu mbago orgraphite, and Venetian red. After these ingredients have been thoroughlyincorporated I remove the compound from the stove and continue stirringsame until the whole is 0001, after which the preparation may betransferred and packed into suitable receptacles for use ortransportation.

If this composition is applied to ironwork, it will reduce to a minimumthe liability of the iron rusting, and when it is used for the purposeof removing rust from iron it will be found to be very useful for thepurpose, as the rust will quickly disappear.

Having thus described the invention, What I claim, and desire to secureby Letters Patent, is-

An improved compound consisting of lard, chemically-pure Vaseline,pulverized gumcamphor, plumbago or graphite, and Venetian red,substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

SYLVESTER P. FROST. Witnesses:

W. P. MARTINDALE, CHARLES WHEAT.

